GB2176050B - Shadow mask and fabricating method therefor - Google Patents

Shadow mask and fabricating method therefor

Info

Publication number
GB2176050B
GB2176050B GB8612489A GB8612489A GB2176050B GB 2176050 B GB2176050 B GB 2176050B GB 8612489 A GB8612489 A GB 8612489A GB 8612489 A GB8612489 A GB 8612489A GB 2176050 B GB2176050 B GB 2176050B
Authority
GB
United Kingdom
Prior art keywords
shadow mask
method therefor
fabricating method
fabricating
therefor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB8612489A
Other versions
GB8612489D0 (en
GB2176050A (en
Inventor
Tetsuya Watanabe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of GB8612489D0 publication Critical patent/GB8612489D0/en
Publication of GB2176050A publication Critical patent/GB2176050A/en
Application granted granted Critical
Publication of GB2176050B publication Critical patent/GB2176050B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/14—Manufacture of electrodes or electrode systems of non-emitting electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/06—Screens for shielding; Masks interposed in the electron stream
    • H01J29/07—Shadow masks for colour television tubes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/14—Manufacture of electrodes or electrode systems of non-emitting electrodes
    • H01J9/142—Manufacture of electrodes or electrode systems of non-emitting electrodes of shadow-masks for colour television tubes
    • H01J9/146—Surface treatment, e.g. blackening, coating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/07—Shadow masks
    • H01J2229/0727—Aperture plate
    • H01J2229/0777—Coatings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/07—Shadow masks
    • H01J2229/0727—Aperture plate
    • H01J2229/0777—Coatings
    • H01J2229/0783—Coatings improving thermal radiation properties
GB8612489A 1985-05-29 1986-05-22 Shadow mask and fabricating method therefor Expired GB2176050B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60118167A JPS61273835A (en) 1985-05-29 1985-05-29 Manufacture of shadowmask

Publications (3)

Publication Number Publication Date
GB8612489D0 GB8612489D0 (en) 1986-07-02
GB2176050A GB2176050A (en) 1986-12-10
GB2176050B true GB2176050B (en) 1989-09-06

Family

ID=14729771

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8612489A Expired GB2176050B (en) 1985-05-29 1986-05-22 Shadow mask and fabricating method therefor

Country Status (6)

Country Link
US (1) US4810927A (en)
JP (1) JPS61273835A (en)
KR (1) KR900005806B1 (en)
CN (1) CN1004389B (en)
DE (1) DE3617908A1 (en)
GB (1) GB2176050B (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4900976A (en) * 1987-12-02 1990-02-13 Zenith Electronics Corporation Material and assemblies for tensioned foil shadow masks
US4904218A (en) * 1987-12-02 1990-02-27 Zenith Electronics Corporation Blackening of non-iron-based flat tensioned foil shadow masks
US4885501A (en) * 1987-12-02 1989-12-05 Zenith Electronics Corporation Blackening of non iron-based flat tensioned foil shadow masks
US4929864A (en) * 1987-12-02 1990-05-29 Zenith Electronics Corporation NI-based FTM shadow masks having a nickel phosphide black layer
JPH0210626A (en) * 1988-06-27 1990-01-16 Mitsubishi Electric Corp Formation of electron reflecting film for shadow mask
JPH0317930A (en) * 1989-06-13 1991-01-25 Mitsubishi Electric Corp Manufacture of color cathode-ray tube
JPH0320934A (en) * 1989-06-15 1991-01-29 Mitsubishi Electric Corp Color cathode-ray tube
DE4118734A1 (en) * 1991-06-07 1992-12-10 Nokia Deutschland Gmbh SHADOW MASK FOR PIPES
US5578898A (en) * 1993-02-15 1996-11-26 Kabushiki Kaisha Toshiba Shadow mask and cathode ray tube
US5292274A (en) * 1993-03-25 1994-03-08 Thomson Consumer Electronics, Inc. Method of manufacturing a color CRT to optimize the magnetic performance
US5451833A (en) * 1993-10-28 1995-09-19 Chunghwa Picture Tubes, Ltd. Shadow mask damping for color CRT
KR100373840B1 (en) * 1995-11-08 2003-05-01 삼성에스디아이 주식회사 Method of fabricating shadow mask for color picture tube
TW418416B (en) * 1996-10-31 2001-01-11 Samsung Display Devices Co Ltd Anti-doming compositions for a shadow-mask and processes for preparing the same
DE19654613C2 (en) * 1996-12-20 2001-07-19 Samsung Display Devices Co Ltd Shadow mask with insulation layer and process for its production
US6144148A (en) * 1998-08-10 2000-11-07 Chunghwa Picture Tubes, Ltd. Thermal expansion for color CRT

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3668002A (en) * 1968-07-01 1972-06-06 Hitachi Ltd Shadow mask having focusing function and method of making same
GB1404898A (en) * 1972-04-11 1975-09-03 Metallgesellschaft Ag Shadow mask for colour picture tubes
GB1417212A (en) * 1972-12-13 1975-12-10 Texas Instruments Inc Shadow mask for a colour television image tube
GB1458229A (en) * 1972-12-29 1976-12-08 Rca Corp Shadow-mask colour cathode ray tubes
GB1475598A (en) * 1973-07-26 1977-06-01 Philips Electronic Associated Cathode ray tube for displaying coloured pictures
US4285106A (en) * 1979-12-13 1981-08-25 Gte Laboratories Incorporated Method for producing color cathode ray tube aperture masks
US4292565A (en) * 1979-04-19 1981-09-29 Tokyo Shibaura Denki Kabushiki Kaisha Shadow mask assembly for a cathode ray tube
GB2080612A (en) * 1980-07-16 1982-02-03 Philips Nv Coated colour selection electrodes for colour display tubes
EP0137411A2 (en) * 1983-09-28 1985-04-17 Kabushiki Kaisha Toshiba Color picture tube
EP0139379A1 (en) * 1983-08-16 1985-05-02 Kabushiki Kaisha Toshiba A colour cathode ray tube

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59211942A (en) * 1983-05-17 1984-11-30 Toshiba Corp Member for color picture tube
NL8400806A (en) * 1984-03-14 1985-10-01 Philips Nv COLOR IMAGE TUBE.

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3668002A (en) * 1968-07-01 1972-06-06 Hitachi Ltd Shadow mask having focusing function and method of making same
GB1404898A (en) * 1972-04-11 1975-09-03 Metallgesellschaft Ag Shadow mask for colour picture tubes
GB1417212A (en) * 1972-12-13 1975-12-10 Texas Instruments Inc Shadow mask for a colour television image tube
GB1458229A (en) * 1972-12-29 1976-12-08 Rca Corp Shadow-mask colour cathode ray tubes
GB1475598A (en) * 1973-07-26 1977-06-01 Philips Electronic Associated Cathode ray tube for displaying coloured pictures
US4292565A (en) * 1979-04-19 1981-09-29 Tokyo Shibaura Denki Kabushiki Kaisha Shadow mask assembly for a cathode ray tube
US4285106A (en) * 1979-12-13 1981-08-25 Gte Laboratories Incorporated Method for producing color cathode ray tube aperture masks
GB2080612A (en) * 1980-07-16 1982-02-03 Philips Nv Coated colour selection electrodes for colour display tubes
EP0139379A1 (en) * 1983-08-16 1985-05-02 Kabushiki Kaisha Toshiba A colour cathode ray tube
EP0137411A2 (en) * 1983-09-28 1985-04-17 Kabushiki Kaisha Toshiba Color picture tube

Also Published As

Publication number Publication date
CN85109271A (en) 1986-11-26
GB8612489D0 (en) 1986-07-02
DE3617908A1 (en) 1986-12-04
US4810927A (en) 1989-03-07
DE3617908C2 (en) 1988-11-24
CN1004389B (en) 1989-05-31
KR900005806B1 (en) 1990-08-11
KR860009463A (en) 1986-12-23
JPS61273835A (en) 1986-12-04
GB2176050A (en) 1986-12-10

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)

Effective date: 20000126

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20050522